Question

Write a balanced half-reaction describing the reduction of gaseous dibromine to aqueous bromide anions.

Answer 1

Answer: The balanced half reaction is written below.

Explanation:

Reduction reaction is defined as the chemical reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.

$X^{n+}+ne^-\rightarrow X$

When bromine gas is reduced to bromide ions, the number of electron transferred are 2

The chemical equation for the reduction of bromine gas to bromide ions follows:

$Br_2+2e^-\rightarrow 2Br^{-}$

Hence, the balanced half reaction is written above.